The mass of the deuterium molecule is twice that of hydrogen molecules. If the vibrational frequency of H2 is 1.30×10¹⁴Hz, what vibrational frequency of D2 Assume the spring constant forces is the same for the two molecules

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.